Population growth: what role does immigration play? – Parliament of Australia
Such immigration is now fueling population growth in many developed These areas saw their populations increase between 66% and %. Relationship between Population Growth, Migration and Rural Environment which is signifies the causes and consequences of Urbanization in urban areas and. Provides an in-depth look at population migration in Indiana from to Research Center estimates that net migration, the difference between inflows and of Hispanic migrants accounted for much of the population growth over the .
Migration, population growth, and development.
Net migration, the unknown variable in this equation, is obtained through simple algebra. Figure 2 shows the pattern of net migration by sex and selected age cohorts for the state between and Since this is a cumulative year total referring to age categories 10 years apart, the interpretation of this information can be somewhat elusive. Indiana witnessed net out-migration among only one of the seven featured age cohorts.
The cohort composed of people who were ages 15 to 19 in included students enrolled in high school in their hometowns as well as some students attending colleges and universities around the state.
Bythis cohort shrunk by roughly 8, men and 7, women, as many young adults, by then aged 25 to 29, presumably completed their education and left the state for job opportunities elsewhere. Keep in mind that the negative bars displayed for this cohort do not mean that the state lost members of the 15 to 19 age group. In fact, Indiana's population of to year-olds increased by nearly 25, between and The news concerning other age cohorts is more encouraging. Growth in the 10 to 14 cohort in appears to be a testament to the ability of Indiana's colleges and universities to attract more out-of-state students than the number of high school Hoosiers it loses to other states after graduation.
In the two oldest cohorts depicted in Figure 2, Indiana witnessed substantial net in-migration. The vast majority of people in these cohorts had completed their education byso migration for education is unlikely to be a factor.
In-migrants outnumbered out-migrants in these cohorts, with perhaps many native sons and daughters of Indiana returning to the Hoosier state to raise a family. Migration flows associated with college attendance are best examined by focusing on a county with a large university, such as Delaware County. Figure 3 clearly displays the impact of Ball State University in the positive net migration values for cohorts who were in the traditional college ages in This is also demonstrated in the negative values for older cohorts.
Migration, population growth, and development.
Many members of the younger cohorts, too young for college inlived outside Delaware County at that time, but bylarge numbers of them had moved to the county to attend BSU. On the other hand, many people among the older cohorts were in the traditional college age range in and enrolled at BSU; by they were 25 to 34 years of age and had left the university and the county. Note that the greater length of the female bars in the relevant college cohorts reflect that college enrollment is dominated by women.
Figure 4 presents a typical pattern of net migration for a mostly rural Hoosier county. Net out-migration prevails among cohorts ages 10 to 14 and 15 to 19 in On balance, members of these cohorts moved out of Franklin County to attend college or seek jobs. In contrast, the cohort that was 20 to 24 in grew by more than people by the yearpresumably on the strength of young adults returning to Franklin County after attending college or gaining work experience elsewhere.
Rapid population growth ultimately results in an intensified competition for resources, jobs, and even such basics as food and water.
That is exactly the case where ISIS has been expanding strongholds, and why, inwar-torn Afghanistan, Syria, Sudan, South Sudan and Somalia accounted for nearly 20 million of the refugees knocking at the doors of other nations.
Population growth: what role does immigration play?
As we go into the future, all demographic models show population continuing to skyrocket in the poorest countries, notably in Africa and the Middle East, including many nations already showing internal conflict. Exacerbating the problem will be impacts of human-caused climate change. Already, unusual climate events have contributed to the refugee-producing crises in Southeast Asia, northeast Africa, and to the Arab Spring uprising, and it is exactly the poorest, most densely populated, and politically least stable regions of the world that are predicted to be hit hardest by rising sea levels, disruption of water and food supplies, and energy shortages slated to intensify as the world tips into a new climate regime.
This is the perfect recipe to continue to feed mass migrations. Without full recognition of these underlying drivers, immigration problems will certainly intensify. Walls and rhetoric will never solve the problem.
Refugees will continue to pour across borders by air, land, and sea. However, recognizing that rapid population growth plays the key role in triggering mass migration reveals solutions to the problem that will be effective in the long term. Scaling the border wall between Mexico and Arizona. One critical piece of the solution will be to address the overarching problem of rapid, unsustainable population growth by international programs that provide educational opportunities and basic health care to women in parts of the world where they currently are unavailable.
Numerous studies document the rapid reduction of birth rates that result.